19198738

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 24

約数和(自身を含む): 31622400

約数和(自身を除く): 12423662

約数列:

[1, 2, 13, 26, 79, 158, 169, 338, 719, 1027, 1438, 2054, 9347, 13351, 18694, 26702, 56801, 113602, 121511, 243022, 738413, 1476826, 9599369, 19198738]

約数ペア:

[(1, 19198738), (2, 9599369), (13, 1476826), (26, 738413), (79, 243022), (158, 121511), (169, 113602), (338, 56801), (719, 26702), (1027, 18694), (1438, 13351), (2054, 9347)]